Wheel grinding and truing machine



Apr. 17, 1923. 1,45%958 V J. c. PRICE WHEEL GRINDING AND TRUING MACHINE Filed Sept. 14, 1922 2 Sheets-Sheet 1- MM m Apr. 17, 1923. 11,451,958

- J. 0. PRICE WHEEL GRINDING AND TRUING MACHINE Filed Sept. 14, 1922 2 Sheets-Sheet 2 y .25 if 15 16 Jfl s k g g k C x w j Patented Apr. 17, 1923.

JOHN C. PRICE, OF OLCO'IT, WEST VIRGINIA.

WHEEL GRINDING AND TRUING MACHINE.

Application filed September 14, 1922.

T 0 all to [2.0m it may concern Be it known that I, J OHN C. PRICE, a citizen of the United States, residing at .Olcott, in the county of Kanawha and State of West Virginia, have invented certain new and use ful Improvements in Wheel Grinding and Truing Machines, of which the following is a specification.

This invention relates to improvements in a wheel grinding and truing machine, one

object of the invention being'the provision.

of a machine especially adapted for grinding and truing car wheels without the necessity of disconnecting the trucks from the car ,and the operation thereupon on alathe.

A further object of this invention is the provision of a device of this character which may be placed conveniently within the pit of a car barn so that the wheels to be acted upon may be moved over the pit, jacked up, track sections removed, and the present machine be fitted thereto for first grinding and then beveling the treads of the wheel as well as the flange.

A still further object of this invention is the provision of a device of this character which is adjustable at will and in which the shafts carrying the abrasive or grinding members remain substantially parallel to each other and driven from a single motor so that the four wheels may be operated upon at the same time.

In the accompanying drawings:

Figure 1 is a top plan view.

Figure 2 is a section taken on line 22 of Figure 1.

Figure 3 is a section taken on line 33 of Figure 1.

Figure 4 is a top plan view showing the supporting frame mounted in a pit.

Figure 5 is a detail view of the adjusting means between the supporting frame and the machine carrying frame.

Figure 6 is a top plan view of the grinding wheel mounting and shaft.

Referring to the drawings, the numeral 10 designates the main support of the present device which is provided with the upstanding screw carrying members 11, 12, 13, 14 and 15, each of which is provided with the adjusting screw 16. The center cross piece 17 is provided with a pin 18 for entering the slot 19 of the adjustable frame 20 of the machine. This frame is adapted to rest upon the member 10 between the respective screw carrying lugs thereof so that the Serial No. 588,210. 7

screws bear against the adjacent edges thereof to adjust and hold the machine carrying frame in the respective adjusted position, that is, forward or backward or slightly to one side or the other, according to the work to be done. Carried by the main carrying frame is a depending bracket 21 in which is supported an electric motor 22 which by means of the pulley and belt 23 drives the shaft 24 journalled in the pillow blocks or standards 25 upon the machine carrying frame. Another shaft 26 is journalled in adjustable pillow blocks or standards 27 upon the same frame and is in parallel relation to the -first shaft 24. A belt 28 connects both of these shafts so that the motor drives one shaft direct and through said shaft drives the remaining shaft.

The ends of the shafts are so formed so as to receive the sleeve 29 which permits the abrasive member 30 to fit upon the end thereof for special work whereas when the sleeve is removed the abrasive members can be moved toward the pillow blocks.

When in use this present machine adapted to fit over a pit in a car barn, the track sections of which are removable. the machine carrying frame being so disposed so that when no abrasive or grinding members are upon the shafts, the shafts will be slightly below the base of the rail. Thus when the car is to be operated upon the truck will be moved over the pit, jacked up off the rails andv the rail sections removed. and while in this position the abrasive wheels will be placed upon the shafts and the machine carrying frame adjusted by the various set screws to present said abrasive or grinding members to the tread and flange of the wheel for grinding and truing.

With this arrangement of truino and grinding machine the main frame is fixed at all times in the car pit while the carrying rails can be removed to permit the car in the jacked position to be held with the wheels directly in the same position as they are when resting upon the rails, this being a decided advantage in that the car does not have to be jacked up to any degree but merely be held in position while the rails are being removed, the wheels being first slightly elevated to permit of this.

It will be noted by this arrangement that the machine carrying arrangement can be moved to and from the wheels and it may be inclined from one side to the other so that the proper bevel may be formed, in this instance, two grinding wheels operating upon two wheels at a time.

In using the present device it has been found that the time required to grind and true car wheels is greatly reducedas itis not- .necessary to remove the wheels from the trucks and mount in a lathe which is the present custom.

Where sodesired one shaft may be used only in which' case it would be the one connected directly with the motor.

Unit I claim as new is:

1. The combination with a car pit and two removable rail sections for receiving the car wheehof awheel truing and grinding machine including a supporting frame mounted within the pit and having transverse. and longitudinal members, upturned lugs carried by said members of the frame, an adjusting screw mounted 1n each upturned member, asecond frame resting upon the first frame and'abutt'ed by saidadjusting screw wheres by' the second frame maybe-adjusted lo'ngi tudinally and laterally relative to the first frame, two parallel shafts one of which is mounted adjustablymelative to each other and carried transversely of the second frame,

the ends of said shattsbeing disposed to project slightly below the trattiQSrailsI', abrasive wheels removably mounted upon the ,ends of said ,shat'tsand adapted when the 'trafli'c' rails are removed to project thereabove-to engage thewheels to be operated upon, transmission means between said shafts whereby bothshafts may be operated mounted within the pit, a second frame rest-i mg upon the first frame, meansrftor ad ust-s ing the second frame transversely and longitudlnally of the supporting frame, twopar allelshafts oneof whichis' mounted adjust ably relative to the other and carried trans.- versely of theqsecond frame, transmisslon means between the shafts, and, abrasive wheels removably mounted uponthe ends ofthe (shafts for engaging rthecar wheels after therailsectlons have been removed- Inte'stnnony whereof I afiix "my slgnature.

JOHN .G. PRICE-I 

